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  • Title: The protective effect of C-phycocyanin on paraquat-induced acute lung injury in rats.
    Author: Sun Y, Zhang J, Yan Y, Chi M, Chen W, Sun P, Qin S.
    Journal: Environ Toxicol Pharmacol; 2011 Sep; 32(2):168-74. PubMed ID: 21843796.
    Abstract:
    To investigate the potential protective effect of C-phycocyanin (PC) on paraquat (PQ)-induced acute lung injury, rats were divided into control, PQ-treated and PQ+PC-treated groups. Rats in PQ-treated group were orally administered with 50mg/kg PQ, and rats in PQ+PC-treated group were intraperitoneally injected with 50mg/kg PC after administration of PQ. At 8, 24, 48 and 72h after treatments, GSH-Px and SOD activities, MDA levels in plasma and BALF, HYP, NF-κB, IκB-α and TNF-α contents in lung tissues were measured. The pathological changes in lung were observed. After treatment with PC, the levels of MDA and the relative contents of NF-κB and TNF-α were significantly decreased, the activities of GSH-Px and SOD and the relative contents of IκB-α were significantly increased. The degree of rat lung damage was obviously reduced in PQ+PC-treated group. The results suggested that PC treatment significantly attenuated PQ-induced acute lung injury.
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